PS19 Laser Power Meter Sensor, 1 watts continuous.
with 10 uW resolution.
The PS19 sensor is a thermally stabilized, amplified thermopile sensor with a broad spectral response, high sensitivity, and a large active area. These sensors are ideal for measuring small laser diodes and HeNe lasers and small ion lasers. Unlike semiconductor detectors, these sensors have a flat broadband output and will not saturate above 1 mW/cm2
Thermally stabilized designs Low power thermopile sensor with 10 uW resolution